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为了验证花期环割对提高红星苹果座果率的效应,我们从1990～1991年连续两年在园艺站试验园内,以生育较一致的9～10年生红星苹果为试材,在其花前一周、始花期、盛花期3个时期,用小刀分别在供试的5株树上选基部粗度2.0～2.5cm,长度80～120cm的枝条20个(每株4个)进行环割1圈、2圈、3圈(均间隔20cm),选与供试枝条生长一致且不环割的枝条20个为对照;6月份落果结束后调查花序座果情况。结果表明,环割枝条平均每枝有座果花序9.8个(且有部分双果)。其中花前一周环
In order to verify the effect of flowering ring cuttings on improving the fruit setting rate of Red Star apple, from 1990 to 1991, two consecutive years in the horticultural station test garden, with more fertile 9 to 10-year-old Red Star apple as test material, One cycle, the first flowering stage, the full flowering stage three periods, with a knife on the five trees were selected on the test of the base thickness of 2 ~ 2.5cm, length 80 ~ 120cm branches 20 (4 per plant) , Two laps, three laps (each interval 20cm), selected for the growth of branches and the test does not ring cut branches 20 as a control; June after the end of fruit check inflorescence fruit situation. The results showed that the average number of perianth inflorescences was 9.8 (with some double fruit) per ring. One week before flowering ring